survivors: adding health enemies dropping health packs

absurd-survivors/src/Enemies.ts

@@ -4,7 +4,7 @@ import {Vector} from "./base.ts";
 import {World} from "./World.ts";
 import type {Projectile} from "./projectile.ts";
 import {HomingProjectile, ProjectileStats, StraightProjectile} from "./projectile.ts";
-import {MoneyDrop} from "./drop.ts";
+import {HealthPack, MoneyDrop} from "./drop.ts";
 
 export abstract class Enemy implements Placeable, Drawable, Acting, Healthy {
     protected _position: Vector;
@@ -131,7 +131,7 @@ export class ShootingEnemy extends BasicEnemy implements Shooting {
 
     static generateShootingEnemy(world: World, position?: Vector) {
         if(position === undefined) {
-            position = new Vector(250, 250)
+            position = world.randomPlace()
         }
         let basicEnemy = new ShootingEnemy(position);
         basicEnemy.size = 5;
@@ -160,4 +160,47 @@ export class EnemyStatus {
     set health(value: number) {
         this._health = value;
     }
+}
+
+export class HealthEnemy extends Enemy {
+
+    constructor(position: Vector) {
+        super(position);
+    }
+
+    protected size: number;
+    protected color: string;
+
+    draw(ctx: CanvasRenderingContext2D) {
+        drawDot(this._position, this.size, this.color, ctx)
+    }
+
+
+    move() {
+    }
+
+    act() {
+        super.act();
+    }
+
+    die() {
+        HealthPack.createHealthPack(this.world, this._position)
+    }
+
+    static createHealthEnemy(world: World, position?: Vector) {
+        if(position === undefined) {
+            position = world.randomPlace()
+        }
+        let basicEnemy = new HealthEnemy(position);
+        basicEnemy.size = 5;
+        basicEnemy.world = world;
+        basicEnemy.speed = 0;
+        basicEnemy.color = 'purple'
+        return basicEnemy;
+    }
+
+
+    getSize() {
+        return this.size
+    }
 }

absurd-survivors/src/Player.ts

@@ -43,6 +43,11 @@ export class Player implements Drawable, Acting, Healthy {
         this._status.health -= damage;
     }
 
+    heal(amount: number) {
+        this._status.health +=  amount;
+        this._status.health = Math.min(this._status.health, this._stats.health)
+    }
+
     get health(): number {
         return this._status.health;
     }

absurd-survivors/src/drop.ts

@@ -3,27 +3,17 @@ import {World} from "./World.ts";
 import {drawDot, moveInDirectionOf} from "./utils.ts";
 import {Vector} from "./base.ts";
 
-export class MoneyDrop implements Drop {
-    private world: World;
-    private worth: number;
-    private _position: Vector;
-    private _color: string;
-    private _size: number;
-
+export abstract class BasicDrop implements Drop {
+    protected world: World;
+    protected  _position: Vector;
+    protected  _color: string;
+    protected  _size: number;
 
     constructor(world: World, position: Vector) {
         this.world = world;
         this._position = position.clone();
     }
 
-    draw(ctx: CanvasRenderingContext2D) {
-        drawDot(this._position, this.getSize(), this._color, ctx)
-    }
-
-    pickup() {
-        this.world.player.status.wealth += this.worth
-    }
-
     getPosition(): Vector {
         return this._position;
     }
@@ -31,6 +21,41 @@ export class MoneyDrop implements Drop {
     move() {
     }
 
+    pickup() {
+    }
+
+    act() {
+        let distanceToPlayer = this._position.distanceTo(this.world.player.position);
+        if(distanceToPlayer < (this.world.player.stats.size + this._size)) {
+            this.pickup()
+            this.world.removeDrop(this)
+        } else if(distanceToPlayer < this.world.player.stats.pullRange) {
+            let speedFactor = 125 / distanceToPlayer;
+            this._position = moveInDirectionOf(this._position, this.world.player.position,  speedFactor)
+        }
+    }
+
+
+    getSize() {
+        return this._size
+    }
+
+    abstract draw(ctx: CanvasRenderingContext2D);
+
+}
+
+export class MoneyDrop extends BasicDrop {
+
+    private worth: number;
+
+    draw(ctx: CanvasRenderingContext2D) {
+        drawDot(this._position, this.getSize(), this._color, ctx)
+    }
+
+    pickup() {
+        this.world.player.status.wealth += this.worth
+    }
+
     static createMoneyDrop(world: World, position?: Vector): MoneyDrop {
         if(!position) {
             position = world.randomPlace()
@@ -43,19 +68,29 @@ export class MoneyDrop implements Drop {
         return drop;
     }
 
-    act() {
-        let distanceToPlayer = this._position.distanceTo(this.world.player.position);
-        if(distanceToPlayer < (this.world.player.stats.size + this._size)) {
-            this.pickup()
-            this.world.removeDrop(this)
-        } else if(distanceToPlayer < this.world.player.stats.pullRange) {
-            let speedFactor = 125 / distanceToPlayer;
-            this._position = moveInDirectionOf(this._position, this.world.player.position,  speedFactor)
+
+}
+
+export class HealthPack extends BasicDrop {
+    private healAmount: number;
+
+    draw(ctx: CanvasRenderingContext2D) {
+        drawDot(this._position, this.getSize(), this._color, ctx)
+    }
+
+    pickup() {
+        this.world.player.heal(this.healAmount)
+    }
+
+    static createHealthPack(world: World, position?: Vector): HealthPack {
+        if(!position) {
+            position = world.randomPlace()
         }
+        let drop = new HealthPack(world, position)
+        drop.healAmount = 5;
+        drop._size = 2;
+        drop._color = 'green';
+        world.addDrop(drop)
+        return drop;
     }
-
-    getSize() {
-        return this._size
-    }
-
 }

absurd-survivors/src/main.ts

@@ -4,7 +4,7 @@ import {docReady} from "canvas-common";
 import {World} from "./World.ts";
 import {Player} from "./Player.ts";
 import {Vector} from "./base.ts";
-import {BasicEnemy, Enemy, ShootingEnemy} from "./Enemies.ts";
+import {BasicEnemy, Enemy, HealthEnemy, ShootingEnemy} from "./Enemies.ts";
 import {HUD} from "./ui.ts";
 import {Pistol} from "./weapons.ts";
 
@@ -110,8 +110,13 @@ docReady(function () {
     world.addEnemy(BasicEnemy.generateBasicEnemy(world))
     world.addEnemy(ShootingEnemy.generateShootingEnemy(world, new Vector(350, 350)))
     setInterval(() => {
-        world.addEnemy(ShootingEnemy.generateShootingEnemy(world, new Vector(Math.random() * world.size.x, Math.random() * world.size.y)))
-    }, 1000)
+        world.addEnemy(ShootingEnemy.generateShootingEnemy(world))
+    }, 1_000)
+
+    setInterval(() => {
+        world.addEnemy(HealthEnemy.createHealthEnemy(world))
+    }, 15_000)
+
     player.addWeapon(Pistol.spawnPistol(world))
     let secondPistol = Pistol.spawnPistol(world, new Vector(-5, -5));
     player.addWeapon(secondPistol)

absurd-survivors/src/projectile.ts

@@ -43,6 +43,8 @@ export abstract class Projectile implements Acting, Placeable {
                             this.world.removeProjectile(this)
                         }
                         this.status.decreasePiercings()
+                    } else {
+                        this.world.removeProjectile(this)
                     }
                 }
             }